38987764 has 12 divisors (see below), whose sum is σ = 69092800. Its totient is φ = 19246968.

The previous prime is 38987743. The next prime is 38987777. The reversal of 38987764 is 46778983.

38987764 = T₄₅₁ + T₄₅₂ + ... + T₆₈₇.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61374 + ... + 62005.

Almost surely, 2^38987764 is an apocalyptic number.

It is an amenable number.

38987764 is a deficient number, since it is larger than the sum of its proper divisors (30105036).

38987764 is a wasteful number, since it uses less digits than its factorization.

38987764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123462 (or 123460 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The square root of 38987764 is about 6244.0182575005. The cubic root of 38987764 is about 339.0856748967.

The spelling of 38987764 in words is "thirty-eight million, nine hundred eighty-seven thousand, seven hundred sixty-four".